The two Battle for Middle Earth games, which were more tied into the movies than the books.[footnote]For example, Arwen retains the River-Horse-Spirit spell in BfME2 that she uses in Fellowship to wash away the Nazgul. Her role in the book didn't include combat functions.[/footnote] I also heard that the beat-em-ups that were tied into the games were also adequate to excellent, but haven't played them myself.
Speaking of Real Time Strategy, though, Dune II, the game that substantiated the RTS genre, was based off the movie (and not so, the book). Its remake Dune 2000 wasn't up to the times (released about the same time as Starcraft). The proper sequel, Emperor, Battle For Dune, however, was excellent. Both were tied far more into the David Lynch blockbuster, rather than Frank Herbert's novel.[footnote]I'd love to see yet another installment, or one of the Sci-Fi channel dual mini-series that both did the books more justice.[/footnote]
Oddly enough, the much panned Treasure Planet movie was given ship-combat game Battle For Procyon [http://en.wikipedia.org/wiki/Treasure_Planet:_Battle_at_Procyon] that was pretty good, and notible since Disney had been skirting the issue of creating combat based games (thereby endorsing letting children play such games) before this one. It was also refreshing considering the Atlantis tie-ins were abyssmal.
Oddly, all I talked about were movies of books. Maybe that's what's necessary to make a good tie-in game: a movie about a book.
238U.[footnote]In the event that Escapist requires me to view a commercial before getting a code, I will simply not post. Depending on the frequency, this may temper or cease my future participation in the Escapist community. Apologies in advance, if this policy prevents me from replying to you when it is proper to do so.[/footnote]